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本文檔為您介紹通用文字識(shí)別常用語(yǔ)言和常見(jiàn)情況的示例代碼。

說(shuō)明

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能力介紹

關(guān)于通用文字識(shí)別的功能介紹以及具體調(diào)用參數(shù)說(shuō)明，請(qǐng)參見(jiàn)通用文字識(shí)別。

SDK包安裝

常見(jiàn)語(yǔ)言的SDK依賴(lài)包信息，請(qǐng)參見(jiàn)SDK總覽。

配置環(huán)境變量

配置環(huán)境變量ALIBABA_CLOUD_ACCESS_KEY_ID和ALIBABA_CLOUD_ACCESS_KEY_SECRET。

重要

阿里云賬號(hào)AccessKey擁有所有API的訪(fǎng)問(wèn)權(quán)限，建議您使用RAM用戶(hù)進(jìn)行API訪(fǎng)問(wèn)或日常運(yùn)維，具體操作，請(qǐng)參見(jiàn)創(chuàng)建RAM用戶(hù)。
請(qǐng)不要將AccessKey ID和AccessKey Secret保存到工程代碼里，否則可能導(dǎo)致AccessKey泄露，威脅您賬號(hào)下所有資源的安全。

Linux和macOS系統(tǒng)配置方法
1. 在IntelliJ IDEA中打開(kāi)終端Terminal。
2. 執(zhí)行以下命令，配置環(huán)境變量。
  <access_key_id>需替換為您RAM用戶(hù)的AccessKey ID，<access_key_secret>替換為您RAM用戶(hù)的AccessKey Secret。如果后續(xù)需要進(jìn)行更多權(quán)限相關(guān)的配置，具體操作請(qǐng)參見(jiàn)使用RAM Policy控制訪(fǎng)問(wèn)權(quán)限。
```
export ALIBABA_CLOUD_ACCESS_KEY_ID=<access_key_id> 
export ALIBABA_CLOUD_ACCESS_KEY_SECRET=<access_key_secret>
```
Windows系統(tǒng)配置方法
新建環(huán)境變量文件，添加環(huán)境變量ALIBABA_CLOUD_ACCESS_KEY_ID和ALIBABA_CLOUD_ACCESS_KEY_SECRET，并寫(xiě)入已準(zhǔn)備好的AccessKey ID和AccessKey Secret。然后重啟Windows系統(tǒng)。本操作以Windows 10為例進(jìn)行說(shuō)明。
1. 打開(kāi)文件資源管理器，在此電腦上右鍵單擊屬性。
2. 在右側(cè)導(dǎo)航欄，單擊高級(jí)系統(tǒng)配置。
3. 在系統(tǒng)屬性對(duì)話(huà)框的高級(jí)頁(yè)簽下，單擊環(huán)境變量。
4. 在環(huán)境變量對(duì)話(huà)框中，單擊新建(W)。
5. 在彈出的新建系統(tǒng)變量對(duì)話(huà)框中，添加環(huán)境變量ALIBABA_CLOUD_ACCESS_KEY_ID和ALIBABA_CLOUD_ACCESS_KEY_SECRET，并寫(xiě)入已準(zhǔn)備好的AccessKey ID和AccessKey Secret。
6. 重啟Windows系統(tǒng)，使配置生效。

示例代碼

文件在上海地域OSS

Java

/*
引入依賴(lài)包
<!-- https://mvnrepository.com/artifact/com.aliyun/ocr20191230 -->
<dependency>
      <groupId>com.aliyun</groupId>
      <artifactId>ocr20191230</artifactId>
      <version>${aliyun.ocr.version}</version>
</dependency>
*/

import com.aliyun.ocr20191230.models.RecognizeCharacterResponse;
import com.aliyun.tea.TeaException;
import com.aliyun.tea.TeaModel;

public class RecognizeCharacter {

    public static com.aliyun.ocr20191230.Client createClient(String accessKeyId, String accessKeySecret) throws Exception {
        /*
          初始化配置對(duì)象com.aliyun.teaopenapi.models.Config
          Config對(duì)象存放 AccessKeyId、AccessKeySecret、endpoint等配置
         */
         com.aliyun.teaopenapi.models.Config config = new com.aliyun.teaopenapi.models.Config()
                .setAccessKeyId(accessKeyId)
                .setAccessKeySecret(accessKeySecret);
        // 訪(fǎng)問(wèn)的域名
        config.endpoint = "ocr.cn-shanghai.aliyuncs.com";
        return new com.aliyun.ocr20191230.Client(config);
    }

    public static void main(String[] args) throws Exception {
        // 創(chuàng)建AccessKey ID和AccessKey Secret，請(qǐng)參見(jiàn)：http://bestwisewords.com/document_detail/175144.html
        // 如果您使用的是RAM用戶(hù)的AccessKey，還需要為子賬號(hào)授予權(quán)限AliyunVIAPIFullAccess，請(qǐng)參見(jiàn)：http://bestwisewords.com/document_detail/145025.html
        // 從環(huán)境變量讀取配置的AccessKey ID和AccessKey Secret。運(yùn)行代碼示例前必須先配置環(huán)境變量。
        String accessKeyId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
        String accessKeySecret = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET"); 
        com.aliyun.ocr20191230.Client client = RecognizeCharacter.createClient(accessKeyId, accessKeySecret);
        com.aliyun.ocr20191230.models.RecognizeCharacterRequest recognizeCharacterRequest = new com.aliyun.ocr20191230.models.RecognizeCharacterRequest()
                .setImageURL("http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/ocr/RecognizeCharacter/RecognizeCharacter1.jpg")
                .setMinHeight(10)
                .setOutputProbability(true);
        com.aliyun.teautil.models.RuntimeOptions runtime = new com.aliyun.teautil.models.RuntimeOptions();
        try {
            // 復(fù)制代碼運(yùn)行請(qǐng)自行打印 API 的返回值
            RecognizeCharacterResponse response = client.recognizeCharacterWithOptions(recognizeCharacterRequest, runtime);
            System.out.println(com.aliyun.teautil.Common.toJSONString(TeaModel.buildMap(response)));
        } catch (TeaException error) {
            // 獲取整體報(bào)錯(cuò)信息
            System.out.println(com.aliyun.teautil.Common.toJSONString(error));
            // 獲取單個(gè)字段
            System.out.println(error.getCode());
        }
    }
}

Python

# -*- coding: utf-8 -*-
# 引入依賴(lài)包
# pip install alibabacloud_ocr20191230

import os
from alibabacloud_ocr20191230.client import Client
from alibabacloud_ocr20191230.models import RecognizeCharacterRequest
from alibabacloud_tea_openapi.models import Config
from alibabacloud_tea_util.models import RuntimeOptions

config = Config(
  # 創(chuàng)建AccessKey ID和AccessKey Secret，請(qǐng)參考http://bestwisewords.com/document_detail/175144.html
  # 如果您用的是RAM用戶(hù)的AccessKey，還需要為RAM用戶(hù)授予權(quán)限AliyunVIAPIFullAccess，請(qǐng)參考http://bestwisewords.com/document_detail/145025.html
  # 從環(huán)境變量讀取配置的AccessKey ID和AccessKey Secret。運(yùn)行代碼示例前必須先配置環(huán)境變量。
  access_key_id=os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_ID'),
  access_key_secret=os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_SECRET'),
  # 訪(fǎng)問(wèn)的域名
  endpoint='ocr.cn-shanghai.aliyuncs.com',
  # 訪(fǎng)問(wèn)的域名對(duì)應(yīng)的region
  region_id='cn-shanghai'
)
recognize_character_request = RecognizeCharacterRequest(
    image_url='http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/ocr/RecognizeCharacter/RecognizeCharacter1.jpg',
    min_height=10,
    output_probability=True
)
runtime = RuntimeOptions()
try:
  # 初始化Client
  client = Client(config)
  response = client.recognize_character_with_options(recognize_character_request, runtime)
  # 獲取整體結(jié)果
  print(response.body)
except Exception as error:
  # 獲取整體報(bào)錯(cuò)信息
  print(error)
  # 獲取單個(gè)字段
  print(error.code)
  # tips: 可通過(guò)error.__dict__查看屬性名稱(chēng)

PHP

<?php

//安裝依賴(lài)包
//composer require alibabacloud/ocr-20191230

use AlibabaCloud\SDK\Ocr\V20191230\Ocr;
use \Exception;
use AlibabaCloud\Tea\Utils\Utils;
use Darabonba\OpenApi\Models\Config;
use AlibabaCloud\SDK\Ocr\V20191230\Models\RecognizeCharacterRequest;
use AlibabaCloud\Tea\Utils\Utils\RuntimeOptions;

class RecognizeCharacter {

    /**
     * 使用AK&SK初始化賬號(hào)Client
     * @param string $accessKeyId
     * @param string $accessKeySecret
     * @return Ocr Client
     */
    public static function createClient($accessKeyId, $accessKeySecret){
        //初始化配置對(duì)象Darabonba\OpenApi\Models\Config。
        //Config對(duì)象存放accessKeyId、accessKeySecret、endpoint等配置
        $config = new Config([
            "accessKeyId" => $accessKeyId,
            "accessKeySecret" => $accessKeySecret
        ]);
        // 訪(fǎng)問(wèn)的域名
        $config->endpoint = "ocr.cn-shanghai.aliyuncs.com";
        return new Ocr($config);
    }

    /**
     * @param string[] $args
     * @return void
     */
    public static function main($args){
        // 創(chuàng)建AccessKey ID和AccessKey Secret，請(qǐng)參考http://bestwisewords.com/document_detail/175144.html
        // 如果您使用的是RAM用戶(hù)的AccessKey，還需要為子賬號(hào)授予權(quán)限AliyunVIAPIFullAccess，請(qǐng)參考http://bestwisewords.com/document_detail/145025.html
        // 從環(huán)境變量讀取配置的AccessKey ID和AccessKey Secret。運(yùn)行代碼示例前必須先配置環(huán)境變量。
        $accessKeyId = getenv('ALIBABA_CLOUD_ACCESS_KEY_ID');
        $accessKeySecret = getenv('ALIBABA_CLOUD_ACCESS_KEY_SECRET'); 
        $client = self::createClient($accessKeyId, $accessKeySecret);
        $recognizeCharacterRequest = new RecognizeCharacterRequest([
            "imageURL" => "http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/ocr/RecognizeCharacter/RecognizeCharacter1.jpg",
            "minHeight" => 10,
            "outputProbability" => true
        ]);
        $runtime = new RuntimeOptions([]);
        try {
            $resp = $client->recognizeCharacterWithOptions($recognizeCharacterRequest, $runtime);
            # 獲取整體結(jié)果
            echo Utils::toJSONString($resp->body);
        } catch (Exception $exception) {
            # 獲取整體報(bào)錯(cuò)信息
            echo Utils::toJSONString($exception);
            # 獲取單個(gè)字段
            echo $exception->getCode();
        }
    }
}
$path = __DIR__ . \DIRECTORY_SEPARATOR . '..' . \DIRECTORY_SEPARATOR . 'vendor' . \DIRECTORY_SEPARATOR . 'autoload.php';
if (file_exists($path)) {
    require_once $path;
}
//$argv是預(yù)留的數(shù)組入?yún)?shù)，無(wú)實(shí)際意義，無(wú)需進(jìn)行修改
RecognizeCharacter::main(array_slice($argv, 1));

Node.js

// 安裝依賴(lài)包
// npm install @alicloud/ocr20191230
const OcrClient = require('@alicloud/ocr20191230');
const OpenapiClient = require('@alicloud/openapi-client');
const TeaUtil = require('@alicloud/tea-util');

let config = new OpenapiClient.Config({
  // 創(chuàng)建AccessKey ID和AccessKey Secret，請(qǐng)參考http://bestwisewords.com/document_detail/175144.html。
  // 如果您用的是RAM用戶(hù)AccessKey，還需要為RAM用戶(hù)授予權(quán)限AliyunVIAPIFullAccess，請(qǐng)參考http://bestwisewords.com/document_detail/145025.html。
  // 從環(huán)境變量讀取配置的AccessKey ID和AccessKey Secret。運(yùn)行示例前必須先配置環(huán)境變量。 
  accessKeyId: process.env.ALIBABA_CLOUD_ACCESS_KEY_ID,   
  accessKeySecret: process.env.ALIBABA_CLOUD_ACCESS_KEY_SECRET
});
// 訪(fǎng)問(wèn)的域名
config.endpoint = `ocr.cn-shanghai.aliyuncs.com`;
const client = new OcrClient.default(config);
let recognizeCharacterRequest = new OcrClient.RecognizeCharacterRequest({
  minHeight: 10,
  outputProbability: true,
  imageURL: "http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/ocr/RecognizeCharacter/RecognizeCharacter1.jpg",
});
let runtime = new TeaUtil.RuntimeOptions({});
client.recognizeCharacterWithOptions(recognizeCharacterRequest, runtime)
  .then(function (recognizeCharacterResponse) {
    // 獲取整體結(jié)果
    console.log(recognizeCharacterResponse);
    // 獲取單個(gè)字段
    console.log(recognizeCharacterResponse.body.data);
  }, function (error) {
    // 獲取整體報(bào)錯(cuò)信息
    console.log(error);
    // 獲取單個(gè)字段
    console.log(error.data.Code);
  })

/**
依賴(lài)github.com/alibabacloud-go/ocr-20191230/v3
建議使用go mod tidy安裝依賴(lài)
*/
package main

import (
	"fmt"
	openapi "github.com/alibabacloud-go/darabonba-openapi/v2/client"
	ocr20191230  "github.com/alibabacloud-go/ocr-20191230/v3/client"
	util "github.com/alibabacloud-go/tea-utils/v2/service"
	"github.com/alibabacloud-go/tea/tea"
)

func main() {
  // 從環(huán)境變量讀取配置的AccessKey ID
  // 運(yùn)行示例前必須先配置環(huán)境變量  
  // 創(chuàng)建AccessKey ID和AccessKey Secret，請(qǐng)參考http://bestwisewords.com/document_detail/175144.html。
  // 如果您用的是RAM用戶(hù)的AccessKey，還需要為RAM用戶(hù)授予權(quán)限AliyunVIAPIFullAccess，請(qǐng)參考http://bestwisewords.com/document_detail/145025.html。
  // 從環(huán)境變量讀取配置的AccessKey ID和AccessKey Secret。運(yùn)行示例前必須先配置環(huán)境變量。  
  accessKeyId := os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_ID")  
  accessKeySecret := os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET")
  // 初始化配置對(duì)象 &openapi.Config。Config對(duì)象存放AccessKeyId、AccessKeySecret、Endpoint等配置。
  config := &openapi.Config{
    AccessKeyId: tea.String(accessKeyId),
    AccessKeySecret: tea.String(accessKeySecret)
	}
	// 訪(fǎng)問(wèn)的域名
	config.Endpoint = tea.String("ocr.cn-shanghai.aliyuncs.com")
	client, err := ocr20191230.NewClient(config)
	if err != nil {
		fmt.Println(err.Error())
	}

	recognizeCharacterRequest := &ocr20191230.RecognizeCharacterRequest{
		ImageURL: tea.String("http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/ocr/RecognizeCharacter/RecognizeCharacter1.jpg"),
		MinHeight: tea.Int32(10),
		OutputProbability: tea.Bool(true),
	}
	runtime := &util.RuntimeOptions{}
	recognizeCharacterResponse, _err := client.RecognizeCharacterWithOptions(recognizeCharacterRequest, runtime)
	if _err != nil {
		fmt.Println(_err.Error())
	} else {
		// 獲取整體結(jié)果
		fmt.Println(recognizeCharacterResponse)
		// 獲取單個(gè)字段
		fmt.Println(recognizeCharacterResponse.Body.Data)
	}
}

// 安裝依賴(lài)包
// dotnet add package AlibabaCloud.SDK.Ocr20191230
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Threading.Tasks;
using AlibabaCloud.SDK.Ocr20191230.Models;
using Tea;
using Tea.Utils;

namespace AlibabaCloud.SDK.Sample
{
    public class Sample
    {
        /**
            * 使用AK&SK初始化賬號(hào)Client
            * @param accessKeyId
            * @param accessKeySecret
            * @return Client
            * @throws Exception
        */
        public static AlibabaCloud.SDK.Ocr20191230.Client CreateClient(string accessKeyId, string accessKeySecret)
        {
            AlibabaCloud.OpenApiClient.Models.Config config = new AlibabaCloud.OpenApiClient.Models.Config
            {
                AccessKeyId = accessKeyId,
                AccessKeySecret = accessKeySecret,
            };
            // 訪(fǎng)問(wèn)的域名
            config.Endpoint = "ocr.cn-shanghai.aliyuncs.com";
            return new AlibabaCloud.SDK.Ocr20191230.Client(config);
        }
        public static void Main(string[] args)
        {
            // 創(chuàng)建AccessKey ID和AccessKey Secret，請(qǐng)參考http://bestwisewords.com/document_detail/175144.html
            // 如果您使用的是RAM用戶(hù)的AccessKey，還需要為子賬號(hào)授予權(quán)限AliyunVIAPIFullAccess，請(qǐng)參考http://bestwisewords.com/document_detail/145025.html
            // 從環(huán)境變量讀取配置的AccessKey ID和AccessKey Secret。運(yùn)行代碼示例前必須先配置環(huán)境變量。
            AlibabaCloud.SDK.Ocr20191230.Client client = CreateClient(System.Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID"), System.Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET"));
            AlibabaCloud.SDK.Ocr20191230.Models.RecognizeCharacterRequest recognizeCharacterRequest = new AlibabaCloud.SDK.Ocr20191230.Models.RecognizeCharacterRequest
            {
                MinHeight = 10,
                OutputProbability = true,
                ImageURL = "http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/ocr/RecognizeCharacter/RecognizeCharacter1.jpg",
            };
            AlibabaCloud.TeaUtil.Models.RuntimeOptions runtime = new AlibabaCloud.TeaUtil.Models.RuntimeOptions();
            try
            {
                AlibabaCloud.SDK.Ocr20191230.Models.RecognizeCharacterResponse recognizeCharacterResponse = client.RecognizeCharacterWithOptions(recognizeCharacterRequest, runtime);
                // 獲取整體結(jié)果
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.ToJSONString(recognizeCharacterResponse.Body));
                // 獲取單個(gè)字段
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.ToJSONString(recognizeCharacterResponse.Body.Data));
            }
            catch (TeaException error)
            {
                // 如有需要，請(qǐng)打印 error
                AlibabaCloud.TeaUtil.Common.AssertAsString(error.Message);
            }
            catch (Exception _error)
            {
                TeaException error = new TeaException(new Dictionary<string, object>
                {
                    { "message", _error.Message }
                });
                // 如有需要，請(qǐng)打印 error
                Console.WriteLine(error.Message);
            }
        }
    }
}

文件在本地或可訪(fǎng)問(wèn)的URL